US5607887A - Method for preparing ceramic mixed-oxide materials, particularly intended to be used as matrix material in composite ceramic products - Google Patents
Method for preparing ceramic mixed-oxide materials, particularly intended to be used as matrix material in composite ceramic products Download PDFInfo
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- US5607887A US5607887A US08/367,265 US36726595A US5607887A US 5607887 A US5607887 A US 5607887A US 36726595 A US36726595 A US 36726595A US 5607887 A US5607887 A US 5607887A
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- 239000000919 ceramic Substances 0.000 title claims abstract description 37
- 238000000034 method Methods 0.000 title claims abstract description 25
- 239000000463 material Substances 0.000 title description 11
- 239000002131 composite material Substances 0.000 title description 3
- 239000011159 matrix material Substances 0.000 title description 2
- 229910052751 metal Inorganic materials 0.000 claims abstract description 37
- 239000002184 metal Substances 0.000 claims abstract description 37
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 33
- 239000000956 alloy Substances 0.000 claims abstract description 33
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000002156 mixing Methods 0.000 claims abstract description 4
- 150000002739 metals Chemical class 0.000 claims abstract description 3
- 230000001590 oxidative effect Effects 0.000 claims abstract description 3
- 239000011777 magnesium Substances 0.000 claims abstract 8
- 229910052710 silicon Inorganic materials 0.000 claims abstract 8
- 239000010703 silicon Substances 0.000 claims abstract 8
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract 7
- 229910052749 magnesium Inorganic materials 0.000 claims abstract 7
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract 5
- 229910052719 titanium Inorganic materials 0.000 claims abstract 5
- 239000010936 titanium Substances 0.000 claims abstract 5
- 229910052727 yttrium Inorganic materials 0.000 claims abstract 4
- VWQVUPCCIRVNHF-UHFFFAOYSA-N yttrium atom Chemical compound [Y] VWQVUPCCIRVNHF-UHFFFAOYSA-N 0.000 claims abstract 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims abstract 3
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims abstract 3
- 229910052791 calcium Inorganic materials 0.000 claims abstract 3
- 239000011575 calcium Substances 0.000 claims abstract 3
- 229910052744 lithium Inorganic materials 0.000 claims abstract 3
- 229910052726 zirconium Inorganic materials 0.000 claims abstract 3
- 239000000203 mixture Substances 0.000 claims description 21
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 claims description 14
- 229910018404 Al2 O3 Inorganic materials 0.000 claims description 10
- 239000003054 catalyst Substances 0.000 claims description 8
- 238000003801 milling Methods 0.000 claims description 8
- 239000002245 particle Substances 0.000 claims description 7
- 238000005245 sintering Methods 0.000 claims description 5
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 claims description 4
- 229910052863 mullite Inorganic materials 0.000 claims description 4
- 229910003079 TiO5 Inorganic materials 0.000 claims description 3
- 229910000505 Al2TiO5 Inorganic materials 0.000 claims description 2
- 229910002976 CaZrO3 Inorganic materials 0.000 claims description 2
- CNLWCVNCHLKFHK-UHFFFAOYSA-N aluminum;lithium;dioxido(oxo)silane Chemical compound [Li+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O CNLWCVNCHLKFHK-UHFFFAOYSA-N 0.000 claims description 2
- AABBHSMFGKYLKE-SNAWJCMRSA-N propan-2-yl (e)-but-2-enoate Chemical compound C\C=C\C(=O)OC(C)C AABBHSMFGKYLKE-SNAWJCMRSA-N 0.000 claims description 2
- 229910052596 spinel Inorganic materials 0.000 claims description 2
- 239000011029 spinel Substances 0.000 claims description 2
- 229910052644 β-spodumene Inorganic materials 0.000 claims description 2
- JNDMLEXHDPKVFC-UHFFFAOYSA-N aluminum;oxygen(2-);yttrium(3+) Chemical compound [O-2].[O-2].[O-2].[Al+3].[Y+3] JNDMLEXHDPKVFC-UHFFFAOYSA-N 0.000 claims 1
- -1 coerdirite Chemical compound 0.000 claims 1
- 229910019901 yttrium aluminum garnet Inorganic materials 0.000 claims 1
- 239000000843 powder Substances 0.000 description 9
- 238000007254 oxidation reaction Methods 0.000 description 7
- 239000003960 organic solvent Substances 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 229910000789 Aluminium-silicon alloy Inorganic materials 0.000 description 3
- 238000009694 cold isostatic pressing Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 239000010409 thin film Substances 0.000 description 3
- 229910000676 Si alloy Inorganic materials 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 2
- 229910001092 metal group alloy Inorganic materials 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910052845 zircon Inorganic materials 0.000 description 2
- 229910007277 Si3 N4 Inorganic materials 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- PSNPEOOEWZZFPJ-UHFFFAOYSA-N alumane;yttrium Chemical compound [AlH3].[Y] PSNPEOOEWZZFPJ-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000002223 garnet Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/64—Burning or sintering processes
- C04B35/65—Reaction sintering of free metal- or free silicon-containing compositions
Definitions
- the present invention refers to a method for preparing ceramic mixed-oxide materials, particularly intended to be used as matrix material in composite ceramic products, by mixing and co-milling of a metal and a ceramic oxide material and subsequent reaction-sintering in an oxidizing atmosphere.
- the present invention now suggests a different way of overcoming the difficulties.
- the feature essentially distinguishing the present invention is that the metal is used in the form of an alloy with an element that is to be present in the final oxide material.
- the element that the metal is to be alloyed with is selected such that the alloy obtained becomes brittle so as to facilitate the milling.
- the subsequent reaction-sintering furthermore can be improved by adding a catalyst metal to the alloy.
- the basic idea of the present invention is to mill, together with a suitable oxide compound, a brittle metal alloy into fine particle sizes.
- the metal is oxidized to its corresponding ceramic composition.
- Examples of materials that may be employed in the method of the present invention are illustrated by referring to a test with an Al:Si-alloy (88:12) that, together with Al 2 O 3 was successfully milled to fine-size particles. Dry-pressed bodies of this composition were oxidized. It turned out that all of the Si, together with a portion of Al, formed mullite. Furthermore, this occurs already at a temperature below 1400° C. in air atmosphere.
- Ceramic materials that can be manufactured according to the same principles are Al 2 TiO 5 , 3Y 2 O 3 .5Al 2 O 3 (YAG), Mg 2 Al 4 Si 5 O 18 (coerdirite), MgAl 2 O 4 (spinel), LiAlSi 2 O 6 ( ⁇ -spodumene) and CaZrO 3 (T m >2300° C.).
- the milling of a pulverulent metal alloy with predetermined brittleness provides particles of sub-micron size ( ⁇ 1 ⁇ m). This provides for a really homogenous distribution of the metals in the alloy and, hence reduces the temperature of the transformation to the corresponding ceramic composition. The homogenous distribution furthermore promotes this transformation.
- the reactivity might be further increased, for example, by adding Mg to AI:Si. It also becomes possible to select the alloy such that an exactly correct ceramic composition is obtained. Owing to the correct ceramic composition the shrinkage during the oxidization also might be controlled and minimized. Should the metal be made still more brittle so as to promote the milling thereof, a gas-atomized alloy powder may be produced having a certain quantity of added ceramic powder.
- Two powder mixtures were prepared.
- the other (reference AlSi--ZrO 2 ) consisted of 30% by weight of Al:Si, 49% by weight of Al 2 O 3 , 20% by weight of ZrO 2 and 1% by weight of Mg. ZrO 2 was added as oxygen-diffusion-increasing agent.
- the two mixtures were milled in a ball mill with Si 3 N 4 -balls in an organic solvent to which was added dispersing and pressing agents.
- the specific surface (BET) of AlSi had increased from 5,9 m 2 /g to 10,0 m 2 /g and for AlSi--ZrO 2 from 6,5 m 2 /g to 10.5 m 2 /g.
- Studies in a scanning-electron microscope disclose that the alloys were milled into sub-micron particles.
- the organic solvent was removed in a thin-film evaporator. After that, the mixtures were screen-granulated.
- the powder mixtures were subjected to cold isostatic pressing at 300 MPa to form green bodies with green densities Of 71% of the theoretic density.
- Oxidation tests were carried out in a thermo-gravimetric analyzing equipment (TGA). At 1400° C. all Si with a portion of Al had been oxidized to mullire (Al 6 Si 2 O 13 ), as proved by X-ray analyses. The density of the samples amounted to 84% of the theoretic value (valid for both AlSi and AlSi--ZrO 2 ).
- TGA thermo-gravimetric analyzing equipment
- Oxidation tests were made in a thermo-gravimetric analyzing equipment (TGA) at 400°-1700° C.
- TGA thermo-gravimetric analyzing equipment
- the resulting material consisted of yttrium-aluminium garnet (YAG), which was identified by means of X-ray diffraction.
- Ti 2 Al-powder (Alfa Products) was weighed together with Al 2 O 3 (Alcoa, Al65G) in required quantities.
- the mixture was milled in a ball mill with Al 2 O 3 -balls in an organic solvent with added dispersing and pressing agents.
- Studies in scanning-electron microscope disclosed that the alloy had been milled to sub-micron particles.
- the organic solvent was removed by means of a thin-film evaporator and after that the mixture was screen-granulated.
- the powder mixture was subjected to cold isostatic pressing at 300 MPa to form green bodies.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Powder Metallurgy (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
- Ceramic Products (AREA)
Abstract
The present invention provides a method for preparing a ceramic mixed-oxide of at least two metals including mixing an alloy with a ceramic oxide. The alloy including a metal selected from the group consisting of aluminum, calcium, lithium, magnesium, silicon, titanium, yttrium, and zirconium. The alloy also includes an element that is to be present in the ceramic mixed-oxide. The element is different from the metal and is selected from the group consisting of aluminum, calcium, lithium, magnesium, a combination of magnesium and silicon, silicon, titanium, yttrium, and zirconium. The ceramic oxide includes a metal that is to be present in the ceramic mixed oxide. The alloy and ceramic oxide are co-milled. The mixed and co-milled alloy and ceramic oxide are reaction-sintered, thereby oxidizing the metal and element of the alloy to produce the ceramic mixed-oxide.
Description
This application is a 371 of PCT/SE93/00618, filed Jul. 7, 1993.
This application is a 371 of PCT/SE93/00618, filed Jul. 7, 1993.
The present invention refers to a method for preparing ceramic mixed-oxide materials, particularly intended to be used as matrix material in composite ceramic products, by mixing and co-milling of a metal and a ceramic oxide material and subsequent reaction-sintering in an oxidizing atmosphere.
In the preparation of ceramic oxide materials of the kind referred to by mixing and co-milling of a metal and a ceramic oxide material and subsequent reaction-sintering, it has always keen desirable to use the metal in a particulate form with the smallest possible particle size Therefore, in many cases it has been attempted to use milled aluminum having a flake shape. A disadvantage of these processes has been, however, that the flakes smear and adhere to the millingbodies due to the softness of the metal and, hence, also mostly remain in a flake shape. See e.g., Nils Claussen et al. "Low-shrinkage Reaction-Bonded Alumina", J. Europ. Caram. Soc., 5, 1989, pages 29-35. See also other articles of and with Nils Claussen and his research group, such as "Tailoring of Reaction-Bonded Al2 O3 Ceramics" Corem Eng Sci Proc, 11, pages 806-820, 1990.
Another way to achieve a better homogeneity between metal and oxide materials in the present connection has been suggested for example, by the US firm Lanxide Corp., Newark, Del., USA and implies that an oxidation of the metal is carried out in melted form. See "Formation of Lanxide ceramic composite materials", J. Mater Res, 1, 1986, pages 81-89. Furthermore, Swedish patent No. 8103269-0 discloses a method of preparing shapes of silicon nitride based materials.
Since the fine-division of the metal that , in which in most cases, constitutes the step that is difficult to surmount for achieving the goals aimed at, the present invention now suggests a different way of overcoming the difficulties. The feature essentially distinguishing the present invention is that the metal is used in the form of an alloy with an element that is to be present in the final oxide material. In this connection, it is a particular advantage of the invention that the element that the metal is to be alloyed with, is selected such that the alloy obtained becomes brittle so as to facilitate the milling. The subsequent reaction-sintering furthermore can be improved by adding a catalyst metal to the alloy.
Thus, the basic idea of the present invention is to mill, together with a suitable oxide compound, a brittle metal alloy into fine particle sizes. In the subsequent reaction-sintering, the metal is oxidized to its corresponding ceramic composition.
Examples of materials that may be employed in the method of the present invention are illustrated by referring to a test with an Al:Si-alloy (88:12) that, together with Al2 O3 was successfully milled to fine-size particles. Dry-pressed bodies of this composition were oxidized. It turned out that all of the Si, together with a portion of Al, formed mullite. Furthermore, this occurs already at a temperature below 1400° C. in air atmosphere.
Other ceramic materials that can be manufactured according to the same principles are Al2 TiO5, 3Y2 O3.5Al2 O3 (YAG), Mg2 Al4 Si5 O18 (coerdirite), MgAl2 O4 (spinel), LiAlSi2 O6 (β-spodumene) and CaZrO3 (Tm >2300° C.).
By the invention, it might be achieved that the milling of a pulverulent metal alloy with predetermined brittleness provides particles of sub-micron size (<1 μm). This provides for a really homogenous distribution of the metals in the alloy and, hence reduces the temperature of the transformation to the corresponding ceramic composition. The homogenous distribution furthermore promotes this transformation. Moreover, when preparing an alloy powder having an added catalyst metal the reactivity might be further increased, for example, by adding Mg to AI:Si. It also becomes possible to select the alloy such that an exactly correct ceramic composition is obtained. Owing to the correct ceramic composition the shrinkage during the oxidization also might be controlled and minimized. Should the metal be made still more brittle so as to promote the milling thereof, a gas-atomized alloy powder may be produced having a certain quantity of added ceramic powder.
Two powder mixtures were prepared. One of them (reference AlSi) consisted of 30% by weight of Al:Si-alloy, weight ratio 88:12, (Johnson Matthey, <44 μm), 69% by weight of Al2 O3 (Alcoa, Al52SG, BET=3,2 m2 /g) and 1% by weight of Mg (Merck, <1 mm), as an auxiliary oxidization agent. The other (reference AlSi--ZrO2) consisted of 30% by weight of Al:Si, 49% by weight of Al2 O3, 20% by weight of ZrO2 and 1% by weight of Mg. ZrO2 was added as oxygen-diffusion-increasing agent. The two mixtures were milled in a ball mill with Si3 N4 -balls in an organic solvent to which was added dispersing and pressing agents. After milling, the specific surface (BET) of AlSi had increased from 5,9 m2 /g to 10,0 m2 /g and for AlSi--ZrO2 from 6,5 m2 /g to 10.5 m2 /g. Studies in a scanning-electron microscope disclose that the alloys were milled into sub-micron particles. The organic solvent was removed in a thin-film evaporator. After that, the mixtures were screen-granulated. The powder mixtures were subjected to cold isostatic pressing at 300 MPa to form green bodies with green densities Of 71% of the theoretic density.
Oxidation tests were carried out in a thermo-gravimetric analyzing equipment (TGA). At 1400° C. all Si with a portion of Al had been oxidized to mullire (Al6 Si2 O13), as proved by X-ray analyses. The density of the samples amounted to 84% of the theoretic value (valid for both AlSi and AlSi--ZrO2). In AlSi--ZrO2 -samples, ZrO2 reacted with Si and was oxidized to ZrSiO4 in a temperature range between 1100° and 1300° C., after which ZrSiO4 reacted with Al2 O3 so as to form mullite at 1400° C. The results also showed that in tests with ZrO2 -addition the oxidation rate of the alloy increased deeper in the inner of the body.
Y2 Al (Alfa Products) was melted and spray-atomized. The powder obtained was weighed together with Al2 O3 (Alcoa, Al65G) in required quantities. The mixture was milled in a mill grinder with Al2 O3 -balls in an organic solvent with added dispersing and pressing agent. Studies in scanning-electron microscope showed that the alloy had been milled to sub-micron particles. The organic solvent was removed by means of a thin-film evaporator. After that, the mixture was screen-granulated. The powder mixture was subjected to cold isostatic pressing at 300 MPa to form test bodies.
Oxidation tests were made in a thermo-gravimetric analyzing equipment (TGA) at 400°-1700° C. The resulting material consisted of yttrium-aluminium garnet (YAG), which was identified by means of X-ray diffraction.
Ti2 Al-powder (Alfa Products) was weighed together with Al2 O3 (Alcoa, Al65G) in required quantities. The mixture was milled in a ball mill with Al2 O3 -balls in an organic solvent with added dispersing and pressing agents. Studies in scanning-electron microscope disclosed that the alloy had been milled to sub-micron particles. The organic solvent was removed by means of a thin-film evaporator and after that the mixture was screen-granulated. The powder mixture was subjected to cold isostatic pressing at 300 MPa to form green bodies.
Oxidation tests were carried out in a thermo-gravimetric analyzing equipment (TGA) at 1400°-1500° C. The resulting material consisted of aluminum titanate (Al2 TiO5), which was identified by means of X-ray diffraction.
Claims (18)
1. A method for preparing a ceramic mixed-oxide of at least two metals, said method comprising the steps of:
mixing an alloy including a metal selected from the group consisting of aluminum, calcium, lithium, magnesium, titanium, and yttrium, said alloy also including an element that is to be present in said ceramic mixed-oxide, said element being different from said metal and is selected from the group consisting of aluminum, silicon, and titanium, with a ceramic oxide that includes a metal that is to be present in said ceramic mixed oxide;
co-milling said alloy and ceramic oxide; and
reaction-sintering said mixed and co-milled alloy and ceramic oxide, thereby oxidizing said metal and element of said alloy to produce said ceramic mixed-oxide.
2. A method according to claim 4, wherein said ceramic mixed oxide is selected from the group consisting of mullite, yttrium aluminum garnet, aluminum titanate, spinel, coerdirite, and β-spodumene.
3. A method according to claim 1, wherein said metal in said ceramic oxide is selected from the group consisting of aluminum, silicon, and zirconium.
4. A method according to claim 1, wherein said element is selected such that the alloy is brittle, thereby facilitating said co-milling.
5. A method according to claim 1, further comprising the step of:
adding a catalyst metal to said alloy.
6. A method according to claim 5, wherein said catalyst metal is magnesium.
7. A method according to claim 2, further comprising the step of:
adding a catalyst metal to said alloy.
8. A method according to claim 7, wherein said catalyst metal is magnesium.
9. A method according to claim 3, further comprising the step of:
adding a catalyst metal to said alloy.
10. A method according to claim 9, wherein said catalyst metal is magnesium.
11. A method according to claim 1, wherein a starting composition ratio of said metal and element in said alloy is selected to match exactly a final composition ratio of said metal and element in said ceramic mixed oxide.
12. A method according to claim 2, wherein a starting composition ratio of said metal and element in said alloy is selected to match exactly a final composition ratio of said metal and element in said ceramic mixed oxide.
13. A method according to claim 3, wherein a starting composition ratio of said metal and element in said alloy is selected to match exactly a final composition ratio of said metal and element in said ceramic mixed oxide.
14. A method according to claim 1, wherein said alloy is selected from the group consisting of alloys of aluminum and silicon, yttrium and aluminum, and titanium and aluminum.
15. A method according to claim 14, wherein said aluminum and silicon are present in said alloy in a ratio of 88 percent aluminum to 12 percent silicon.
16. A method according to claim 1, wherein said ceramic oxide is selected from the group consisting of Al2 O3 and ZrO2.
17. A method according to claim 1, wherein said ceramic mixed oxide is selected from the group consisting of Al2 TiO5, 3Y3 O3.5Al2 O3, MgAl2 O4, Mg2 Al4 Si5 O18, LiAlSi2 O6, and CaZrO3.
18. A method according to claim 1, wherein said alloy and ceramic oxide are milled to particles of submicron size.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE9202174 | 1992-07-15 | ||
| SE9202174A SE470424B (en) | 1992-07-15 | 1992-07-15 | Process for the preparation of mixed oxide ceramic materials |
| PCT/SE1993/000618 WO1994002431A1 (en) | 1992-07-15 | 1993-07-07 | A method for preparing ceramic mixed-oxide materials, particularly intended to be used as matrix material in composite ceramic products |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US5607887A true US5607887A (en) | 1997-03-04 |
Family
ID=20386790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US08/367,265 Expired - Fee Related US5607887A (en) | 1992-07-15 | 1993-07-07 | Method for preparing ceramic mixed-oxide materials, particularly intended to be used as matrix material in composite ceramic products |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US5607887A (en) |
| EP (1) | EP0650467B1 (en) |
| JP (1) | JPH08501053A (en) |
| CA (1) | CA2140259C (en) |
| DE (1) | DE69305745T2 (en) |
| ES (1) | ES2094555T3 (en) |
| SE (1) | SE470424B (en) |
| WO (1) | WO1994002431A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5928979A (en) * | 1994-02-14 | 1999-07-27 | Matsushita Electric Industrial Co., Ltd. | Method for manufacturing composite ceramics |
| US6103651A (en) * | 1996-02-07 | 2000-08-15 | North American Refractories Company | High density ceramic metal composite exhibiting improved mechanical properties |
| US20030190276A1 (en) * | 2000-09-27 | 2003-10-09 | Yasuhiro Unehara | Non-porous spherical silica and method for production thereof |
| SG99292A1 (en) * | 1999-11-03 | 2003-10-27 | Univ Singapore | A method for producing oxide compounds |
| US20060097419A1 (en) * | 2004-09-27 | 2006-05-11 | The University Of Houston | Carbon combustion synthesis of oxides |
| US20110104469A1 (en) * | 2007-11-15 | 2011-05-05 | Riman Richard E | Method of hydrothermal liquid phase sintering of ceramic materials and products derived therefrom |
| US20110130278A1 (en) * | 2009-11-30 | 2011-06-02 | Keith Norman Bubb | High Porosity Beta-Spodumene-Mullite Composite Substrate, Article, And Method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10222788B4 (en) * | 2002-05-23 | 2006-04-27 | Universität Bremen | Method for producing a ceramic material with an at least substantially oxide-ceramic matrix and pores embedded therein |
| CN111574212A (en) * | 2020-04-28 | 2020-08-25 | 电子科技大学 | Low-temperature sintered low-dielectric microwave ceramic material and preparation method thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4217113A (en) * | 1977-06-13 | 1980-08-12 | Massachusetts Institute Of Technology | Aluminum oxide-containing metal compositions and cutting tool made therefrom |
| US4557884A (en) * | 1980-05-14 | 1985-12-10 | Dresser Industries, Inc. | Refractory |
| US4605634A (en) * | 1982-12-30 | 1986-08-12 | Corning Glass Works | Reaction sintered oxide-boride |
| GB2209345A (en) * | 1987-09-03 | 1989-05-10 | Alcan Int Ltd | Making aluminium metal-refractory powder composite by milling |
| WO1989009755A1 (en) * | 1988-04-13 | 1989-10-19 | Nils Claussen | Ceramic moulding produced by powder metallurgy, use and preparation thereof |
| US5338712A (en) * | 1993-02-04 | 1994-08-16 | Timmino Ltd. | Production of non-explosive fine metallic powders |
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1992
- 1992-07-15 SE SE9202174A patent/SE470424B/en not_active IP Right Cessation
-
1993
- 1993-07-07 DE DE69305745T patent/DE69305745T2/en not_active Expired - Fee Related
- 1993-07-07 CA CA002140259A patent/CA2140259C/en not_active Expired - Fee Related
- 1993-07-07 ES ES93916359T patent/ES2094555T3/en not_active Expired - Lifetime
- 1993-07-07 US US08/367,265 patent/US5607887A/en not_active Expired - Fee Related
- 1993-07-07 WO PCT/SE1993/000618 patent/WO1994002431A1/en active IP Right Grant
- 1993-07-07 JP JP6504377A patent/JPH08501053A/en active Pending
- 1993-07-07 EP EP93916359A patent/EP0650467B1/en not_active Expired - Lifetime
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4217113A (en) * | 1977-06-13 | 1980-08-12 | Massachusetts Institute Of Technology | Aluminum oxide-containing metal compositions and cutting tool made therefrom |
| US4557884A (en) * | 1980-05-14 | 1985-12-10 | Dresser Industries, Inc. | Refractory |
| US4605634A (en) * | 1982-12-30 | 1986-08-12 | Corning Glass Works | Reaction sintered oxide-boride |
| GB2209345A (en) * | 1987-09-03 | 1989-05-10 | Alcan Int Ltd | Making aluminium metal-refractory powder composite by milling |
| WO1989009755A1 (en) * | 1988-04-13 | 1989-10-19 | Nils Claussen | Ceramic moulding produced by powder metallurgy, use and preparation thereof |
| US5338712A (en) * | 1993-02-04 | 1994-08-16 | Timmino Ltd. | Production of non-explosive fine metallic powders |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5928979A (en) * | 1994-02-14 | 1999-07-27 | Matsushita Electric Industrial Co., Ltd. | Method for manufacturing composite ceramics |
| US6103651A (en) * | 1996-02-07 | 2000-08-15 | North American Refractories Company | High density ceramic metal composite exhibiting improved mechanical properties |
| SG99292A1 (en) * | 1999-11-03 | 2003-10-27 | Univ Singapore | A method for producing oxide compounds |
| US20030190276A1 (en) * | 2000-09-27 | 2003-10-09 | Yasuhiro Unehara | Non-porous spherical silica and method for production thereof |
| US7070748B2 (en) | 2000-09-27 | 2006-07-04 | Mitsubishi Rayon Co., Ltd. | Non-porous spherical silica and method for production thereof |
| US20060097419A1 (en) * | 2004-09-27 | 2006-05-11 | The University Of Houston | Carbon combustion synthesis of oxides |
| US7897135B2 (en) | 2004-09-27 | 2011-03-01 | University Of Houston | Carbon combustion synthesis of oxides |
| US20110104469A1 (en) * | 2007-11-15 | 2011-05-05 | Riman Richard E | Method of hydrothermal liquid phase sintering of ceramic materials and products derived therefrom |
| US8709960B2 (en) * | 2007-11-15 | 2014-04-29 | Rutgers, The State University Of New Jersey | Method of hydrothermal liquid phase sintering of ceramic materials and products derived therefrom |
| US20110130278A1 (en) * | 2009-11-30 | 2011-06-02 | Keith Norman Bubb | High Porosity Beta-Spodumene-Mullite Composite Substrate, Article, And Method |
| US8314049B2 (en) * | 2009-11-30 | 2012-11-20 | Corning Incorporated | High porosity beta-spodumene-mullite composite substrate, article, and method |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0650467B1 (en) | 1996-10-30 |
| EP0650467A1 (en) | 1995-05-03 |
| CA2140259A1 (en) | 1994-02-03 |
| DE69305745T2 (en) | 1997-04-30 |
| ES2094555T3 (en) | 1997-01-16 |
| DE69305745D1 (en) | 1996-12-05 |
| CA2140259C (en) | 2003-07-01 |
| JPH08501053A (en) | 1996-02-06 |
| SE9202174L (en) | 1994-01-16 |
| WO1994002431A1 (en) | 1994-02-03 |
| SE470424B (en) | 1994-02-21 |
| SE9202174D0 (en) | 1992-07-15 |
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